Enhanced field emission from PbTiO3 nanodots prepared by phase separation approach

Li, Jinna; Luo, Ming; Weng, Wenjian; Cheng, Kui; Du, Piyi; Shen, Ge; Han, Gaorong

doi:10.1016/j.apsusc.2009.08.028

Cited by 4 publications

(3 citation statements)

References 27 publications

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“…In our previous work, a sol-gel based phaseseparation-induced self-assembly (PSIA) route was proven to be effective in direct preparation of TiO 2 nanodots on substrates with controlled nanodot size and density [31,32]. Based on that, PT nanodots was also derived and showed enhanced field emission [33]. In this work, we looked into the formation of PT nanodots, and the influence of processing factors were characterized and discussed.…”

Section: Introductionmentioning

confidence: 95%

Phase-separation-induced self-assembly of controllable PbTiO3 nanodots on Si substrates

Cheng

Weng

et al. 2011

Journal of Alloys and Compounds

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Section: Introductionmentioning

confidence: 95%

Phase-separation-induced self-assembly of controllable PbTiO3 nanodots on Si substrates

Cheng

Weng

et al. 2011

Journal of Alloys and Compounds

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“…Recently, perovskite oxide nanomaterials have aroused wide research interest in the applications of nanoelectronics [1][2][3] owing to their unique physical and chemical properties which are highly shape and size dependent. 1,4 A wide range of nanostructures such as nanodots, 5 nanorods, 6 nanowires, 7 nanocubes, 8 and nanosheets 9 have been reported for diverse applications. Different from other types of nanostructures, 2-D nanostructures such as nanosheets express some unique electronic, optical, catalytic and magnetic properties because of their large surface area and quantum connement effects.…”

Section: Introductionmentioning

confidence: 99%

Bipolar resistive switching characteristics in LaTiO3 nanosheets

et al. 2014

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In this work, we reported a facile approach to fabricate LaTiO 3 (LTO) nanosheets for resistive switching memory applications. Different from other lanthanum titanates synthesized via solvothermal approaches, herein the unique composition ratio of La : Ti : O ¼ 1 : 1 : 3 has been found. The drop-coating method was utilized to deposit LTO films followed by gold top electrode deposition to complete device fabrication. The pristine device was found to exhibit excellent bipolar resistance switching characteristics with resistance ON/OFF ratio of $100, high uniformity in switching parameters and stability at elevated temperatures as well. The origin of switching behaviour in these devices on the basis of formation and annihilation of conducting filaments was addressed.

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“…Recent literature dealing with lead-free ferroelectric nanocrystals and nanodots, like BaTiO 3 [33,34], BiFeO 3 [35], as well as with lead-based (PbTiO 3 ) nanodots [36,37], should finally be cited in order to testify to the high activity around this field of research and to the high quality of the published works.…”

Section: Introductionmentioning

confidence: 99%

Randomly organized and self-assembled Na0.5Bi0.5TiO3 nanodots elaborated by sol–gel and pulsed laser deposition routes

et al. 2013

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This work reports for the first time on the elaboration, by both chemical (sol-gel) and physical (Pulsed Laser Deposition) routes, of lead-free ferroelectric Na 0.5 Bi 0.5 TiO 3 nanodots deposited on bare c-sapphire single crystal substrates presenting a 5° miscut angle along the [110] direction. Prior to any deposition, the sapphire substrates were treated at 1350°C, during 24h in air, in order to increase the height of the surface steps, reaching by this way ~ 8nm. The experimental parameters adjusted for the growth of Na 0.5 Bi 0.5 TiO 3 dots were the concentration of sols and the number of laser pulses (50 and 100) for the sol-gel and pulsed laser deposition routes, respectively. Whereas the sol-gel route leads to randomly organized Na 0.5 Bi 0.5 TiO 3 nanodots in respect to the surface steps, the pulsed laser deposition route provokes the selfassembly for some important proportion of these dots along the same surface steps. Despite the lack of organization for the sol-gel dots, the latter present a much more regular distribution in size (~100 and ~10-20 nm as average lateral dimensions and height, respectively) compared to dots deposited by laser ablation, where three different populations of grains can be observed. In each case, the dots do not seem to be epitaxially grown.

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Enhanced field emission from PbTiO3 nanodots prepared by phase separation approach

Cited by 4 publications

References 27 publications

Phase-separation-induced self-assembly of controllable PbTiO3 nanodots on Si substrates

Phase-separation-induced self-assembly of controllable PbTiO3 nanodots on Si substrates

Bipolar resistive switching characteristics in LaTiO3 nanosheets

Randomly organized and self-assembled Na0.5Bi0.5TiO3 nanodots elaborated by sol–gel and pulsed laser deposition routes

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